{"product_id":"rockwool-comfortboard-80-1-1-4-in-x-48-in-x-96-in-32-sqft","title":"ROCKWOOL® COMFORTBOARD 80 1-1\/4 in. x 48 in. x 96 in. (32 sq ft per sheet)","description":"32 sq ft per sheet (1-1\/4 by 48 by 96 in.). Slim Comfortboard 80 CI when outboard build-out is tight. About R-5.25 for the board from R-4.2\/in at 75 °F (1.25 times 4.2) per USA TDS (07-2025) math. 8 lb\/ft³; ASTM E136 \/ E84 0\/0. TDS publishes NRC for 1 in. (0.75) and 1.5 in. (0.90); 1-1\/4 in. falls between published rows—contact ROCKWOOL for strict acoustic submittals if needed.","brand":"ROCKWOOL","offers":[{"title":"Default Title","offer_id":53898817700150,"sku":"ROCKWOOL_COMFORTBOARD_80_1_1_4","price":66.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/9129\/7334\/files\/20250407_RW-NA_PROD_1672_c39e235d-b6bd-459b-b4e6-2a64ed2fb1d5.png?v=1776056011","url":"https:\/\/yearsbuildingmaterials.com\/es\/products\/rockwool-comfortboard-80-1-1-4-in-x-48-in-x-96-in-32-sqft","provider":"YEARS","version":"1.0","type":"link"}